*{
		padding:0px;
		margin:0px;
	}
	.all{
		background:#dcdcdc;
		width:100%;
		height:100%;
		position:absolute;
	}
	.login{
		margin:115px auto; 
		height:400px;
		width:400px;
		border:1px solid red;
	}
	.tab{
		text-align:center;
		border:1px;
		margin: 165px auto;
	}
	.tab tr td input{
		height:25px;
		line-height:10px;
	}
	.l{
		width:80px;
		margin-left: 65px;
	}
	.r{
		width:80px;
	}